---
id: "action-build-thumbnail-skill"
type: "action-item"
source_timestamps: ["00:10:01", "00:12:28"]
tags: ["skill-building", "design", "thumbnails", "branding"]
related: ["concept-face-lock", "concept-higgsfield-mcp", "framework-skill-anatomy"]
action: "Create a skill that combines brand typography rules with identity preservation language."
outcome: "Automated generation of on-brand YouTube thumbnails featuring a consistent human face."
sources: ["alex"]
sourceVaultSlug: "claude-skills-content-automation-2026May14"
originDay: 1
---
# Build a Face-Locked Thumbnail Skill

## Action

Build a dedicated **Thumbnail Generator** [[concept-claude-skills-d1]] that fuses brand-system rules with the [[concept-face-lock]] identity-preservation technique.

## Skill ingredients

Follow [[framework-skill-anatomy]]:

### Frontmatter
- Name: `thumbnail-generator`
- Description: precise trigger phrases ("thumbnail," "thumb," "YouTube cover," etc.) — see why in [[claim-description-importance]].

### Instructions
- **Brand typography** — exact fonts, weights, font-size ranges.
- **Color palette** — hex values, allowed combinations.
- **Grid / layout rules** — safe zones, focal placement, contrast minimums.
- **Identity preservation language** — explicit instructions to lock facial features to the provided reference image (the Face Lock layer).
- **Negative constraints** — no stock emojis, no AI-typical artifacting cues, no off-brand colors.

### Examples
- 2–3 input/output pairs showing ideal thumbnails for past videos.

## Outcome

Generate dozens of on-brand thumbnail variants (different backgrounds, hooks, expressions) with a consistent, recognizable creator face — replacing manual Photoshop cleanup.

## Caveats

- Face fidelity isn't 100% — heavy style/lighting shifts can still drift. Curate before publishing.
- Mind platform policies on synthetic media. Face-locking *yourself* is generally fine; face-locking others without consent is not.


## Related across days
- [[concept-face-lock]]
- [[concept-higgsfield-mcp]]
- [[action-install-higgsfield-mcp]]